Ice-making appliance



O. B. EMERSON.

ICE MAKING APPLIANCE.

APPLICATION man MAY29, 1919.

Patented Mar. 30, 1920.

2 SHEETSSHEET 1- L $1 7154 (JIM/00W 0. B. EMERSON.

ICE MAKING APPLIANCE.

APPLICATION FILED M-AY 29, 1919.

l MM Mar. 30, 1920.

. V I e I j (1 //X I 17 N e A L 1.1 I I M I l i I 1 J 2 2 y d f J J 0120 B. Emerson 355 11 La atf/o'anel a N ED STATES PATEu oF icn q ONO BUBR EMERSON, OF ALLISON, IOWA, ASSIGNOR 0F ONE-FIFTH TO OI ALLISON, IOWA.

FRED G. SCHULTZ,

Application filed Kay 29, 1919. Serial No. 300,582.

To all whom it may concern: Be it known that I, ONo BURR EMERSON, a citizen of the United States, residing at Allison, in the county of Butler and State of Iowa, have invented certain new and useful Improvements in Ice-Making Appliances, of which the following is a specification. 7

This invention relates tmappliances for making ice, and the object of the invention is to provide simple and inexpensive devices for-this purpose which may be employed to make ice in block form and with a protecting covering of a simple and in expensive kind.

' In carrying out my invention I provide a mold frame having four parts, which are connected with each other' and are held in place by locking devices of a novel kind. Within the mold frame plates are located which are adapted to move toward and from the ends of the frame and which en- I gage plungers that operate on the locking devices to release them in order that parts of the frame may be loosened and released from the ice. The mold frame is adapted to receive a container or receptacle for the liquid to be frozen and the arrangement is such that the expanded ice operates on the plates to actuate the plungers to loosen the locking devices and thus allow parts of the mold' frame to separate in order that v they. may be removed from the ice block.

The freezing operation may be performed in any freezing atmosphere, either natural or artificial.

In the accompanying drawings Figure 1 is a perspective view indicating how the paper to form the container is drawn from a roll, cut to size, and placed on the former. v

Fig. 2 shows the paper partly bent over the former.

Fig, 3 illustrates how the former and container are inserted in the mold frame.

Fig. 4 is a perspective view of the mold frame.

Fig. 5 is a sectional view of portions of the mold frame, one of the sides of,the

over a former C. It is then bent over the former in the manner indicated in Fig. 2. After this the former with the container is inserted in the mold frame D as shown in Fig. 3. As soonas the container. is properly placed, the .former is withdrawn and the liquid to be frozen is poured into the containerand left in-a freezing atmosphere, either natural or artificial. of icelis formed the mold frame is released from the container and the ice with its protecting covering may be shipped or placed in storage. p

Figs. 4.- and 5 show more in detail the preferred constructionv of the mold frame. -It preferably consists of four main parts at, d d d, which may be made of metal,

wood, or any other suitable material. The two sides d, d are of the same size, shape, and

construction, and the two ends d d are similar to each other,

Each end piece a! or 03* is connected with of wood. In such case a sheet metal piece.

f is applied to each end of one of the side pieces, such as d, and bent so as to. form a groove f, adapted to receive a flange f formed on a sheet metal strip f applied to the adjacent end of an end piece. The connection is sufiiciently loose to allow the end piece to swing to a slight extent or the side piece and end piece may be separated by sliding the flange out of the groove. While this manner of connecting the end pieces to one of the side pieces is referred, it may be done in other ways. the end piece where the connection is located is preferably made to enter a recess 9 in the adjacent end of the side piece in order to provide a tight and solid connection. The .opposite end of each end piece is pref- After the block T e end of' Specification of Letters Patent. Patented Mar. 30, 1920.

erably made to extend into .a recess 91' in the adjacent side piece. Each end piece is preferably connected to the side pieces in substantially the same way.-

In orderto securely fasten the end pieces and side pieces to each other, I provide locking devices" preferably of the kind illustrated. As shown, each locking device comprises a hasp H hinged at k'to one end of,a side piece, and extending therefrom toward the middle portion of the end'piece across a cleat I applied to the end piece. The free the hasp engages the hook and the lever is turned to the position shown in Fig. 4-, the end piece is securely locked to the side pieces, but when the lever is turned to the position shown in Fig. 5 the locking devices are released and the members of the frame may besepargated.

In order to automatically release the looking devices when the block of ice is formed I provide plates N within the mold frame which operate on plungers 0 adapted to engage the levers L. Each of these plungers extends through a casing 0 containing a spring 0" which normally presses the plunger inward, but which allows the plunger to be moved outward by the plate. Each plate N is suitably supported at one end preferably by means of a cleat P attached to'an en-d piece, and. the plate is so held that.nor-

mally it occupies the position shown by full lines in Figs. 4: and 5, but when the ice is formed it will act by expansion upon the plate to bend it in the manner indicated by dotted lines in such a way as to actuate the plunger .0, which in turn operates on the lever L to turn it, thus releasing the hasp'I-I and allowing the frame pieces to separate.

It will be understood that the arrangement of locking devices, plates, etc. at opposite ends of the mold frame are preferably of the same .construction.

The mold frame is simple in construction, inexpensive to manufacture; its parts may be easil assembled and locked in place and the loc ing devices are of such character that they will be automatically released as soon as the ice is formed. The block of ice with its covering may be lifted out\of the,

mold frame when it is separated and loosened in the mannerbefore described or the frame may be withdrawn from the block without moving the latter. 7 I

In 1 his way pure ice may be obtained in. convenient sizes. The cost of the paper container is comparatively small and if left on the ice will form a protection therefor. The mold frame is of substantial and durable gonstruction and may be used fora long ime.

In order to prevent bulging of the bottom of the container when the water freezes, a stick or rod X may be inserted inthe water allowing one end totouch the bottom of the container and the other to project out of the water.

' Another feature of the invention is that inasmuch as the members of the mold frame are separable from each other, they may be placed side by side so as to occupy small space for shipping purposes or the frame to .a

with its locked together may be placed I claim as my inventlon:

1. An ice making appliance, comprising side and end members loosely connected at their ends with each other and separable bodily the one from the others, a locking device for holdi'ngsaid members firmlyconnected, and devices within the appliance operated by the expansion of the liquid therein to release the locking device and thus per.- mit each member to be separated bodily from the others. I

2. An ice making appliance, comprising side and end members loosely connected at their ends with each other and separable bodily the one fromthe others, a locking device for holding said members firmly connected, a plate within the appliance movable by the expansion of the liquid therein, and connections between the plate and the look ing device whereby when the late is moved by the expansion of the liquld the locking device is released, permitting each member of the appliance to be separated from the others. i

3. An ice making appliance, comprising side and end members, means for loosely and separately connecting each end of each side member with the ends of the end members, a locking device for holding said members firmly connected, a plate within the appliengaging another member, a locking lever: having a hooked end engaging the hasp, and

devices operated by the expansion of the liquid being frozen to release the lever from said locking hasp.

5. An ice making appliance, comprising a -mold frame having side members and end members, a hasp applied to one of the side members and engaging one of the end members, a cleat on ,said .end member across whichthehasp extends, a locking lever pivotally connected with said end member and having a hooked end engaging the hasp, a plate within the'mold frame, and a spring plunger connecting. the plate with the locking lever the arrangement being such that when the liquid expands theplate through said plunger acts upon the locking lever to to separate.

6. An ice making appliance, comprising a release it and thus allow the frame members mold frame having separable members and carried by the other side member and engagadapted to receive a liquid container, plates ing the two end members, locking levers car- 15 Within the frame between which the conried by the two end members and having tainer is placed and which bear on said conhooked ends engaging the hasps, expansible tainer, locking devices connecting the frame plates within the mold frame, and connecmembers, and plungers operated by the tions between the plates and the locking plates when the liquid freezes to release the levers whereby when the plates are ex 20 looking levers and thus allow :the frame panded the locking levers are released and members to separate. the members are allowed to separate.

7. An ice making appliance, comprising In testimony whereof, I have hereunto four separable frame members, separable subscribed my name. connections between the two end members and one of the side members, locking hasps I ONO BURR EMERSON. 

